Does Kristen Ring Your Bell?

Kristen Bell, at the premiere of her new Judd Apatow produced comedy, "Forgetting Sarah Marshall", was lookin' a bit stiff, not to mention old, although she's only 27, on the red carpet in a beautiful blue and white strapless dress. Is it the blue eye-shadow and the updo or the fake smile?

As an actress, ya'd think she could act happier than that!